StacksVerified U.S. regulatory reference

40 CFR §180.1142

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
An exemption from the requirement of a tolerance is established for the residues of the plant growth regulator, 1,4-dimethylnaphthalene (1,4-DMN), when applied postharvest to all sprouting root, tuber, and bulb crops in accordance with good agricultural practices.